21465368

素因数分解:

$2^3\times {\mathrm{271}}^1\times {\mathrm{9901}}^1$

素因数の和:10178

約数の個数: 16

約数和(自身を含む): 40400160

約数和(自身を除く): 18934792

約数列:

[1, 2, 4, 8, 271, 542, 1084, 2168, 9901, 19802, 39604, 79208, 2683171, 5366342, 10732684, 21465368]

約数ペア:

[(1, 21465368), (2, 10732684), (4, 5366342), (8, 2683171), (271, 79208), (542, 39604), (1084, 19802), (2168, 9901)]